Hi, I have a 2007 Nissan 350Z which I dearly love ! (250, 0000 miles ) , but the engine light has turned on, I took it to the dealer, and they told me my timing chain is off by a small fraction. I have the codes with me. they are charging me $5,000 I can't afford this. My cars runs great still with this problem and I do not hear any rattle noise when I drive it. Does anyone have a good mechanic in the Los Angeles, CA area that I can take my car to look at? I know this is a very delicate replacement and the engine needs to be removed. I will really appreciated. thank you!